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Wire Wheels 101 - Hot Wires: Part I

OEM And Accessories: How To Spot The Originals And Where To Buy The Copies Of The Hot Rod And Custom World's Most Enduring Wire Wheel
By Chris Shelton
Photography by Chris Shelton, Tom Benford, Damon Lee, Wheel Vintiques, Rally America, Jerry Chinn, Bruce Donelan
Wire Wheels Cadillac Wire Wheels
Wire Wheels 1932 Ford Wheel
With its 18-inch diameter... 
   
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Wire Wheels 1932 Ford Wheel
With its 18-inch diameter and closed-hub center, the '32 Ford wheel was a radical departure from the Model A and T designs. Hallmarks of all Ford V-8 wires, whether the 18-inch '32, the 17-inch '33 and '34, or the 16-inch '35, include a 5x5-1/2 bolt pattern and 32 straight-ended spokes welded to both the hub and rim. Even though several vendors, including Kelsey Hayes, produced this wheel design for Ford, Rally America's Jimmy McLean said to resist the urge to call them anything but a Ford wheel.
Wire Wheels 17 Inch Wheel
While this crusty example... 
   
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Wire Wheels 17 Inch Wheel
While this crusty example is a 17-inch wheel like the ones Ford used on the '33 and '34 vehicles and was actually made for a Ford, it never officially came on a Ford. It's an accessory made by Motor Wheel Corp., not to be confused with wheel distributor Motor Wheel and Rim. The company offered them with either riveted or adjustable spokes in 16- to 18-inch diameters as a more robust version of OEM wheels. Now, here's a curiosity: Like a Ford wheel, the 17- and 18-inch wheels had 32 spokes; however, the 16-inch wheel had 36. At least in 16-inch form, they approximate the Kelseys look well enough to fool most people, but they cost considerably less.
Wire Wheels 16 Inch Model Wheel
Above and beyond supplying... 
   
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Wire Wheels 16 Inch Model Wheel
Above and beyond supplying Ford with its 32-spoke welded wheels, Kelsey Hayes offered its own line of accessory wheels-disc and wire alike-in various diameters for many makes. Like a Motor Wheel, they have either riveted or adjustable spokes; however, unlike those wheels, these wheels' spokes number 40. Like a '35, this one's a 16-inch model, the most desirable by the hot rod market for decades. If you find 'em, be prepared to pay.
Wire Wheels Sing Cross Pattern
The wheels that came on Fords,... 
   
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Wire Wheels Sing Cross Pattern
The wheels that came on Fords, whether made by Kelsey, Budd, or Ford itself, have straight spokes welded directly to the hub and rim. They're laced in what's called a single-cross pattern, meaning each spoke crosses only one other spoke. The gap between the rim and hub measures 2 7/8 inches on an 18-inch '32 wheel, 2 1/8 inches on a 17-inch '33-34 wheel, and 1 5/8 inches on a '35 16-inch wheel.
Wire Wheels Cross Spoke Pattern
Motor Wheels, like Ford wheels,... 
   
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Wire Wheels Cross Spoke Pattern
Motor Wheels, like Ford wheels, feature a single-cross spoke pattern; however, they're not welded. Instead, Motor Wheel (and Kelsey Hayes) butted the hub ends of the spokes, needled them through dimpled holes in the hub, and fastened them to the rim by either forming their ends into rivets or threading them to take adjusters. Both companies also reduced the diameter of the rim center, thereby narrowing the hub-to-rim gap. Though the design isn't unique to Motor Wheel, those gaps are. It's 1 1/4 inches for a 16-inch wheel and 2 1/2 inches for a 17-inch wheel, but unfortunately we didn't have an 18 to measure.
Wire Wheels Two Cross Pattern
With one exception for the... 
   
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Wire Wheels Two Cross Pattern
With one exception for the 15-inch wheel, Kelsey Hayes employed what's called a two-cross pattern. It improves a wheel's ability to deliver torque, since a wheel laced in a greater cross count loads each spoke closer to its most effective direction: along its length. Theoretically, it also improves a wheel's ride quality, since the design increases the spoke length and longer spokes flex more readily. The hub-to-gap diameters are roughly a quarter-inch narrower than those of a Motor Wheel due to a slightly larger hub.
Wire Wheels Dimple Direction
Spoke and cross count aside,... 
   
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Wire Wheels Dimple Direction
Spoke and cross count aside, there's another pretty foolproof method to distinguish a Motor Wheel from a Kelsey: dimple direction. Jimmy pointed out that the dimples on the Motor Wheel point outward, or away from the lug nuts. Ever wonder what the bent-spoke reference comes from? According to Jimmy, the double-hit riveting process employed by both Kelsey Hayes and Motor Wheel required that each spoke meet the rim perpendicularly. One hit bent the rim end of the spoke; the other hit mushroomed the tip.
Wire Wheels Outward Dimple
The dimples on the Kelsey... 
   
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Wire Wheels Outward Dimple
The dimples on the Kelsey wheel point inward, or toward the lug nuts. This is technically a better way to dimple a wheel, because the tension on the spoke forces the dimple in on itself. It's like a press-nut in a way. The problem is that the protruding spoke heads protrude into the hub. To remedy that, Kelsey just made the hub slightly larger-hence the gap difference between Kelsey and Motor Wheel wheels.
Wire Wheels Five Rasied Bosses
These manufacturers produced... 
   
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Wire Wheels Five Rasied Bosses
These manufacturers produced similar wheels for many car makers, but the ones made for '32-35 Ford cars are unique: They register on five raised bosses (arrows) cast into the hubs or drums just inboard of the wheel studs. They serve as part of the hub-contact area; the area immediately around the mounting holes will deform without them. In the best-case scenario, the wheels will constantly loosen; eventually, they will crack.

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